Tuukka Rask stopped 28 shots for his third shutout of the playoffs to lead the Boston Bruins in a 2-0 win over the Chicago Blackhawks in Game 3 of the Stanley Cup Finals from TD Garden. After splitting a pair of overtime games in Chicago, Boston got second period goals from Daniel Paille and Patrice Bergeron, then turned to its goaltender in the third period to preserve the lead for a 2-1 advantage in this best-of- seven series. Chicago, meanwhile, has dropped the past two games after winning the opener in triple-overtime despite 33 saves from Corey Crawford on Monday. The team had trouble generating any quality offensive chances, going 0-for-5 on the power play, due in part to Marian Hossa missing Game 3 as a late scratch. It was originally reported that Hossa had suffered an injury during the pre- game warmups, but Chicago head coach Joel Quenneville said after the game that Hossa suffered an upper-body injury before the warmups and he is day-to-day. He was replaced by Ben Smith, who played in one game in the regular season. Game 4 will take place on Wednesday night in Boston.